IPOPHL Trademark Agent study materials
IPOPHL Trademark Agent study resources

IPOPHL Trademark Agent: Relative Grounds, Confusing Similarity, and Prior Rights

IPOPHL Trademark Agent · Work through your exam, one topic at a time.

All guide sections

Relative Grounds, Confusing Similarity, and Prior Rights

Relative grounds ask whether registering the applicant's mark would collide with an earlier protected right. The core test is likelihood of confusion, not whether the marks look identical in a side-by-side comparison.

Core rules

  • Prior filing or priority date controls among competing applicants for identical or closely related goods or services.
  • A mark is refused if it is identical with, or confusingly similar to, an earlier registered mark or earlier application for the same or closely related goods/services.
  • Well-known marks are protected even for dissimilar goods where use would indicate a connection and damage the owner's interests.
  • Trade names and marks used but not registered by another in the Philippines may be invoked under the IP Code and Paris Convention Article 6bis principles.
  • Philippine courts use the dominancy test (what consumers remember as the dominant feature) and the holistic test (the total commercial impression), often together.

Worked example

Earlier registration: 'COCOLITE' for coconut water in Class 32. Application: 'COCOLYTE' for coconut milk in Class 29. The first syllables and phonetic structure are close, and the goods are related plant-based drinks. Under the dominancy test, 'COCO' plus the distinctive ending 'LYTE/LITE' drives recollection. Under the holistic test, packaging and stylization may differ, but confusion as to source remains likely. Refusal is probable unless the applicant proves a different commercial impression or a coexistence agreement.

Traps

Do not compare only word spellings; consider sound, meaning, and overall impression. Do not ignore relatedness of goods. A well-known mark does not require local registration, but evidence of reputation is essential. Consent letters and coexistence agreements are persuasive, not automatic. Priority claims must be timely and supported.